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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25229-2024: Grain and oils storage - Requirement of airtightness of warehouse Status: Valid GB/T 25229: Historical versions
Basic dataStandard ID: GB/T 25229-2024 (GB/T25229-2024)Description (Translated English): Grain and oils storage - Requirement of airtightness of warehouse Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B20 Classification of International Standard: 65.040.20 Word Count Estimation: 13,187 Date of Issue: 2024-10-26 Date of Implementation: 2025-05-01 Older Standard (superseded by this standard): GB/T 25229-2010 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 25229-2024: Grain and oils storage - Requirement of airtightness of warehouse---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT25229-2024ICS 65.040.20 CCSB20 National Standard of the People's Republic of China Replaces GB/T 25229-2010 Airtightness requirements for grain and oil storage silos Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued PrefaceThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 25229-2010 "Requirements for airtightness of flat warehouses for grain and oil storage". Compared with GB/T 25229-2010, In addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Added airtightness requirements for silos and warehouse accessories (see 4.1, 4.2); --- Changed the requirements for warehouse air tightness level and adjusted the pressure half-life value of the level indicator (see Table 1 and Table 2,.2010 Edition Table 1, Table 2); --- Changed the content of sealant, and proposed performance requirements according to non-structural sealing materials and structural sealing materials (see 4.3.1, 4.3.2, 5.3.3 of the.2010 edition); --- Deleted the content of polyamide epoxy resin, polyurethane foam and non-woven fabrics (see 5.3.5 and 5.3.6 of the.2010 edition); --- Changed the warehouse air tightness pressure half-life test method (see 5.1, Chapter 6 of the.2010 edition); ---Increased the airtightness pressure half-life of warehouse supporting components, sealing materials, sealing films, sealing coatings and airtight insulation boards Test methods for energy consumption (see 5.2 to 5.7); --- Deleted the air tightness test of flat warehouses (see Appendix C of the.2010 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was submitted by the State Administration of Grain and Material Reserves. This document is under the jurisdiction of the National Technical Committee on Standardization of Cereals and Oils (SAC/TC270). This document was drafted by. Henan University of Technology, Zhengzhou COFCO Research and Design Institute Co., Ltd., COFCO Chengdu Storage Research Institute Co., Ltd., Henan Gongda Design and Research Institute Co., Ltd., Guangdong Grain Reserve Management Group Co., Ltd., COFCO Engineering Testing and Certification Co., Ltd., Zhejiang Jin Jiang Construction and Decoration Engineering Co., Ltd., Henan Juyan Materials Technology Co., Ltd., and Henan Bulk Grain Silo Engineering Testing Co., Ltd. The main drafters of this document are. Ding Yonggang, Zhang Lailin, Wang Rong, Fu Pengcheng, Fu Huitan, Sun Huinan, Ye Zhenhong, Chen Yan, Sui Sai, Li Haojie, Hu Yamin, Yu Wenjiang, Xu Qikeng, Liu Shuaihua, Chen Junqi, Guo Chengzhou, Liang Caihong, Li Xuesen, Xu Qingyu, Wang Yue, Wang Jianlong, Li Songwei, Chen Bingshen, Huang Zhengqiang, and Li Yongjie. The previous versions of this document and the documents it replaces are as follows. ---First published in.2010 as GB/T 25229-2010; ---This is the first revision. Airtightness requirements for grain and oil storage silos1 ScopeThis document specifies the technical requirements for granary air tightness and describes the test methods for granary air tightness. This document applies to warehouses that store grain and oil using controlled atmosphere, fumigation and temperature control technologies.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 1037 Plastic film and sheeting - Determination of water vapor transmission properties - Cup weight gain and loss method GB/T 1040.3 Plastics - Determination of tensile properties - Part 3.Test conditions for films and sheets GB/T 6343 Determination of apparent density of cellular plastics and rubber GB 8624 Classification of combustion performance of building materials and products GB/T 8810 Determination of water absorption of rigid cellular plastics GB/T 8814 Unplasticized polyvinyl chloride (PVC-U) profiles for doors and windows GB/T 9756 Synthetic resin emulsion interior wall paint GB/T 10295 Insulation materials - Determination of steady-state thermal resistance and related properties - Heat flow meter method GB 18582 Limits of Hazardous Substances in Architectural Wall Coatings GB/T 19789 Plastic film and sheeting for packaging materials - Oxygen permeability test - Coulometric method GB/T 22083 Classification and requirements of building sealants GB/T 29890 Technical Specification for Grain and Oil Storage GB 30982 Limits of Hazardous Substances in Building Adhesives GB/T 31729 Test method for mass per unit area of plastic film GB/T 37866 Green Product Evaluation for Plastic Products GB 50077 Design Standard for Reinforced Concrete Silos GB 50320 Design specification for grain warehouses GB 50728 Technical Specification for Safety Assessment of Engineering Structure Reinforcement Materials JC/T 485 Elastic sealant for building windows JG/T 25 Test method for thermal degeneration resistance of architectural coatings JG/T 172 Elastic Architectural Coatings QB/T 1130 Test method for right-angle tearing properties of plastics3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 The enclosure structure hinders the performance of gas exchange between the inside and outside of the warehouse. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25229-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 25229-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 25229-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25229-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
